Simplify: root(108c ^ 17, 3)

3c ^ 5 * root(4c ^ 2, 3)
3 * root(4c ^ 17, 3)
18c ^ 8 * sqrt(3c)
6c ^ 8 * sqrt(3c)

1 answer

To simplify the expressions provided, let's go through each of them one by one.

  1. Simplifying \( \sqrt[3]{108c^{17}} \):

    We can simplify this expression by breaking it down: \[ \sqrt[3]{108c^{17}} = \sqrt[3]{108} \cdot \sqrt[3]{c^{17}} \] The cube root of \(108\) can be simplified: \[ 108 = 27 \times 4 = 3^3 \times 4 \Rightarrow \sqrt[3]{108} = 3\sqrt[3]{4} \] For \(c^{17}\): \[ \sqrt[3]{c^{17}} = c^{\frac{17}{3}} = c^5 \cdot c^{\frac{2}{3}} \] Therefore: \[ \sqrt[3]{108c^{17}} = 3\sqrt[3]{4} \cdot c^5 \cdot c^{\frac{2}{3}} = 3c^5 \sqrt[3]{4c^2} \]

  2. Simplifying \( 3c^5 \sqrt[3]{4c^2} \):

    This is already a simplified expression, so we keep it as: \[ 3c^5 \sqrt[3]{4c^2} \]

  3. Simplifying \( 3 \sqrt[3]{4c^{17}} \):

    Likewise, we can express this as: \[ 3 \sqrt[3]{4c^{17}} = 3 \cdot \sqrt[3]{4} \cdot \sqrt[3]{c^{17}} = 3 \cdot \sqrt[3]{4} \cdot c^5 \cdot c^{\frac{2}{3}} = 3c^5 \sqrt[3]{4c^2} \]

  4. Simplifying \( 18c^8 \sqrt{3c} \):

    We can break it down: \[ \sqrt{3c} = \sqrt{3} \cdot \sqrt{c} \] So, we rewrite it as: \[ 18c^8 \sqrt{3c} = 18c^8 \cdot \sqrt{3} \cdot \sqrt{c} = 18c^{8.5}\sqrt{3} \]

  5. Simplifying \( 6c^8 \sqrt{3c} \):

    Similarly: \[ 6c^8 \sqrt{3c} = 6c^8 \cdot \sqrt{3} \cdot \sqrt{c} = 6c^{8.5}\sqrt{3} \]

Summary of Simplified Results:

  1. \( 3c^5 \sqrt[3]{4c^2} \)
  2. \( 3c^5 \sqrt[3]{4c^2} \)
  3. \( 3c^5 \sqrt[3]{4c^2} \)
  4. \( 18c^{8.5}\sqrt{3} \)
  5. \( 6c^{8.5}\sqrt{3} \)

As you can see, the first three expressions evaluate to the same form (\( 3c^5 \sqrt[3]{4c^2} \)). The last two expressions have different coefficients but share the same variable structure with respect to \(c\).

If needed, you can combine \(18c^{8.5}\sqrt{3} \) and \(6c^{8.5}\sqrt{3} \) together if representing them in a simplified form is intended.